Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6042800 | Continuous method of removing impurities from crude silver nitrate | Brian L. Simpson, Gary Michael Distefano, Stephen Michael Popham, Donald Charles Reid | 2000-03-28 |
| 5364418 | Process for compacting silver nitrate | Ralph H. Pelto, Brian L. Simpson, Theodore E. Walker, John W. Crevelling, Paul C. Drake +1 more | 1994-11-15 |
| 5360602 | Silver nitrate produced by a continuous evaporative crystallization process | Jeffrey R. Hennenkamp, Brian L. Simpson, Theodore E. Walker, Paul C. Drake | 1994-11-01 |